OBJECT J, 49403

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT J, 49403 is a satellite owned by Aoyama Gakuin (JP) in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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<iframe src="https://www.satcat.com/sats-embedded/49403?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/49403?theme=dark&initialShowStats=false

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Identifier

49403, 2021-102J

Orbit

SSO

Country

JP / JPN

Related business

Aoyama Gakuin University (JP)

Manufacturer

Aoyama Gakuin

Mission

Non-operational Amateur Astronomy

Bus & Motor

CUBESAT 1U, Unknown motor

Mass

1 kg wet, 1 kg dry

Launch date (UTC)

2021-11-09 (5 years ago)

Launch vehicle

EPSILON

Launch site

Kagoshima Space Center University Of Tokyo (KSCUT)

Object type

Unknown

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.015 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 OBJECT J
1 49403U 21102J   26155.12826301  .00221397  00000-0  10795-2 0  9996
2 49403  97.2984 220.5957 0006557 189.0351 171.0801 15.81742852253596

Epoch: 2026-06-04T03:04Z

TLE epoch observation values (Epoch: 2026-06-04T03:04:41.924Z)

Latitude

0.00002°

Longitude

-78.15596°

Altitude

333.032 km

Speed

7.706 km/s

True Right ascension

14h 42m 22s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

12:28:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

326.785 km

Perigee altitude

317.998 km

Semi-major axis

6,700.528 km

Eccentricity

0.00066

Inclination

97.2984°

RAAN

220.5957°

Arg. of periapsis

189.0351°

True anomaly

171.09174°

Mean anomaly

171.0801°

Eccentric anomaly

171.08592°

Mean motion

3.95712 °/min

Orbital period

90.98 mins

BSTAR

0.0010795

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Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT K, 49404

KOSEN-1, 49402

RAISE 2, 49397

TEIKYOSAT-4 (OORURI), 49396

Z-SAT, 49399

HIBARI, 49400

ASTERISC, 49395 (Decayed)

DRUMS, 49401

OBJECT D, 49398

DRUMS TARGET-1, 55685 (Decayed)

DRUMS TARGET-2, 58954 (Decayed)

EPSILON R/B, 49405 (Decayed)

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OBJECT J Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
4 mins	2026-06-07 04:04:04.550Z	136.109° SSE	2026-06-07 04:06:04.550Z	75.837° E	27.566°	2026-06-07 04:08:04.550Z	12.888° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OBJECT J, 49403 on other resources

View OBJECT J, 49403 on Heavens-Above

View OBJECT J, 49403 on Keep Track

View OBJECT J, 49403 on Celestrak

View OBJECT J, 49403 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

OBJECT J, 49403

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-04T03:04:41.924Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT J Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT J, 49403 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago